The unpredictable and widespread threat of mass shootings can affect anyone anywhere. Interrupting the process of planning and conducting a mass shooting is a matter of public safety. However, the public's willingness to ...
Social Sciences
13 hours ago
0
7
In 2023, 410 people were murdered in Philadelphia—more than a quarter of them under age 25. In addition to the people who died, countless others lost loved ones and people they relied on.
Social Sciences
17 hours ago
0
1
An asteroid dubbed "Lucy's baby" after a NASA spacecraft discovered it is orbiting another asteroid last November is,, in fact,, a solar system toddler—just 2–3 million years old, a Cornell-led research team estimates ...
Astronomy
Apr 30, 2024
0
231
High refractive index polymers (HRIPs) are essential for manufacturing modern optoelectronic devices, including displays and light sensors. However, high-performance HRIPs are expensive and environmentally unfriendly.
Polymers
Apr 30, 2024
0
43
In winter 2021, Australia's frogs started dropping dead. People began posting images of dead frogs on social media. Unable to travel to investigate the deaths ourselves because of COVID lockdowns, we asked the public to report ...
Plants & Animals
Apr 30, 2024
0
9
Some truffles are particularly expensive and therefore often the target of food fraud. For example, high-priced Piedmont truffles (Tuber magnatum) are often difficult to distinguish from the cheaper spring truffles (T. borchii) ...
Molecular & Computational biology
Apr 30, 2024
0
2
The inventors of a suite of tests that enable food packages to signal whether their contents are contaminated are working to bring producers and regulators together to get their inventions into commercial products, with the ...
Biotechnology
Apr 30, 2024
1
16
A study by the University of Cordoba analyzes trends in the blooming patterns of the genus Quercus in Andalusia, using pollen concentrations in the air and confirming their effects on allergies
Plants & Animals
Apr 30, 2024
0
22
Vertical farms look hi-tech and sophisticated, but the premise is simple—plants are grown without soil, with their roots in a solution containing nutrients. This innovative approach to agriculture is growing in global market ...
Agriculture
Apr 30, 2024
0
2
The question may be the 21st century's version of the fable of the tortoise and the hare: Who would win in a foot race between a robot and an animal?
General Physics
Apr 30, 2024
1
1
System (from Latin systēma, in turn from Greek σύστημα systēma) is a set of interacting or interdependent entities forming an integrated whole.
The concept of an 'integrated whole' can also be stated in terms of a system embodying a set of relationships which are differentiated from relationships of the set to other elements, and from relationships between an element of the set and elements not a part of the relational regime.
The scientific research field which is engaged in the study of the general properties of systems include systems theory, systems science, systemics and systems engineering. They investigate the abstract properties of the matter and organization, searching concepts and principles which are independent of the specific domain, substance, type, or temporal scales of existence.
Most systems share common characteristics, including:
The term system may also refer to a set of rules that governs behavior or structure.
This text uses material from Wikipedia, licensed under CC BY-SA
